feat(HEL-571): 网站图标全部换成新太极Logo

Co-authored-by: multica-agent <github@multica.ai>

frontend/m/css/shell.css

@@ -288,6 +288,14 @@ body {
   margin-bottom: 12px;
 }
 
+.m-brand-mark img {
+  width: 100%;
+  height: 100%;
+  display: block;
+  border-radius: inherit;
+  object-fit: cover;
+}
+
 .m-auth-brand h2 {
   margin: 0;
   font-size: 20px;

frontend/m/index.html

@@ -4,6 +4,10 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
   <meta name="color-scheme" content="light dark">
+  <link rel="icon" href="/favicon.ico" sizes="any">
+  <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
+  <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
+  <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
   <title>小白复盘</title>
   <link rel="stylesheet" href="css/tokens.css">
   <link rel="stylesheet" href="css/shell.css">
@@ -25,7 +29,7 @@
       })();
     </script>
     <div id="m-boot-splash" aria-hidden="true">
-      <span class="m-brand-mark">复</span>
+      <span class="m-brand-mark"><img src="/icon-192.png" alt=""></span>
     </div>
     <header id="m-header" class="m-header">
       <button id="m-back" class="m-header-btn" type="button" aria-label="返回" hidden>

frontend/m/js/router.js

@@ -250,7 +250,7 @@
     document.getElementById("m-view").innerHTML = [
       '<div class="m-auth">',
       '<div class="m-auth-brand">',
-      '<span class="m-brand-mark">复</span>',
+      '<span class="m-brand-mark"><img src="/icon-192.png" alt=""></span>',
       '<h2>小白复盘</h2>',
       '<p>登录后进入你的复盘空间</p>',
       "</div>",